How can fetch one column of one entity

[Kenneth Burgos Nivar]

For example:

@Entity
public class User extends Model {

   @Id(Generator.AUTO_INCREMENT)
    public Long id;

    public String username;
    public String password;
    public String fullname;
}

in Application.index()

   List<String> allFullname = User.all()...  ???? (how can get only every fullname)

thank you.

[Erin Drummond]

Hi Kenneth,

As far as I know this isnt possible in Siena, however i'd be interested if someone else stepped in to correct me because id like to do something similar in my code (ive just been taking the performance hit of selecting everything up till now)

Cheers,
Erin

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[Kenneth Burgos Nivar]

Erin thank you very much for the info, let's see if anyone has a possible solution.

[Pascal Voitot Dev]

If I remember well, it isn't possible because it wasn't possible in GAE when I implemented it.

Maybe it is now but I don't follow GAE improvements since long now;)

Pascal

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[Emanuele Ziglioli]

It's possible on GAE: https://developers.google.com/appengine/docs/java/datastore/projectionqueries

Haven't thought on how to do it in Siena/GAE

Have you had a need to do it?